The Lord's Resistance Army (LRA) was begun under other names by Joseph Kony in the early 1980's, drawing initial support by the resentment among the Acholi of northern Uganda at the overthrow of ethnic Acholi President Tito Okello by Yoweri Museveni. Kony's methods include heavy use of Christian iconography and child soldiers. His army has been reduced to a few hundred fighters, and operates between Uganda, Sudan, the Democratic Republic of the Congo, and the Central African Republic. IRIN has an excellent backgrounder on the group.